How to take Vector group test of Transformer?
Answer Posted / dinesh kumar
Assumed the transformer vector group is DYn11;
1.1U1V1W-which is primary -Delta Connection
2.2U2V2W- Which is secondary-Star connection
3.join 1U& 2U terminals
4.Supply 1U-1V-1W 440v Measured
a.1U-1V
b.1V-1w
c.1W-1U
d.1W-2W
e.1V-2W
f.1V-2V
g.1W-2V
h.1U-2N
i.1V-2N
TO CHECK
1.1V-2W=1V-2V
2.1W-2V>1W-2W
3.1U-1V=1V-2N+1U-2N
From above check(1,2,3) the vector group of transformer is
verified
Is This Answer Correct ? | 225 Yes | 28 No |
Post New Answer View All Answers
what is circuit breaker in transfomer and where it used
What is mean 2XWY
when the Transmission and Distribution network where is the "feeder" lines are located? and why should be used in T&D network.....
What are electric motors?
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....
why magnetising curve not start with zero voltage?
What is limitedly stable system?
i need about 10 years of GATE solved papers in pdf format and even mock tests toooo
How can ou verify the size of conductor 50Sq.mm ACSR
how is capacitor bank look like
What is the difference b/w fanuc alpha series 16i and 18i controller. what is stand for i
i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.
does a DG set has low fault level as compared to that of a transformer.If yes then why.
what is negative d.c. voltage, why this voltage is used in base transciever station.